How can I select a random numbers from an array in matlab in a repeating way?

I have an array name time with 1 row and 1000 columns.

time=[5,6,7,2,8,1,3,9......]

I want to call randomly any values from that array. Following is my working algorithm.

time2=any random values from time

time3=any random values from time

time4=(time2+time3)/2

time5=any random value from time

common time=5;

time6=common time-time5;

time7=time1+time6

I have to store the values of time7 and have to repeat this process for 1000 times. That I can get the 1000 times time7 values.

How can I do this in MATLAB?